A weight suspended from a spring is seen to bob up and down over a distance of 39 cm twice each second. what is its frequency? answer in units of hz.

What is the circulatory system responsible for

Jenny is playing on her spring bed, jumping up and down. She weighs 480. N, and her spring bed has springs with spring constant 1100N/m. What is the gravitational potential energy he will reach when she jumps to. 32m?

Climate change adds another level of uncertainty to the world. T/F

What increase electrical resistance of metal?

What is an oscillation or disturbance that travels through space called?

What happens to the speed of the particles if the temperature is increased

A 65-year-old male enters the hospital with high blood pressure, damaged lungs, low blood-oxygen concentration, and throat cancer. What are all of these symptoms associated with?

At a certain factory, 340 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.00 m/s. (A motor maintains the belt's constant speed.) The coefficient of kinetic friction between belt and crate is 0.400.

A hydraulic lift is used to lift a heavy box that is pushing down on a 1.5-m2 piston with a force of 1,700 N. What force needs to be exerted on a 0.12-m2 piston to lift the box?

Rauol's friend Johnny sets out from his house in the city. His displacement is 900 m 80° North of west. What is the x component of his displacement vector?